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siphash42: add tests with unaligned input pointers

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Add test case for calling siphash24 with unaligned input pointers, as we
commonly get with calling it on the result on basename() or similar.

This provides a test for PR #1916, rescued from the superseded PR #1911.

Thanks to Steve Langasek for the test!
This commit is contained in:
Martin Pitt
2015-11-16 16:24:56 +01:00
parent f5ed8d4a51
commit 69b98e71b4
1 changed files with 26 additions and 11 deletions
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src/test/test-siphash24.c
+26 -11
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@@ -24,17 +24,12 @@
#define ITERATIONS 10000000ULL
/* see https://131002.net/siphash/siphash.pdf, Appendix A */
int main(int argc, char *argv[]) {
static int do_test(const uint8_t *in, size_t len, const uint8_t *key) {
struct siphash state = {};
const uint8_t in[15] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e };
const uint8_t key[16] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f};
uint64_t out = 0;
unsigned i, j;
siphash24(&out, in, sizeof(in), key);
siphash24(&out, in, len, key);
assert_se(out == htole64(0xa129ca6149be45e5));
/* verify the internal state as given in the above paper */
@@ -43,7 +38,7 @@ int main(int argc, char *argv[]) {
assert_se(state.v1 == 0x6b617f6d656e6665);
assert_se(state.v2 == 0x6b7f62616d677361);
assert_se(state.v3 == 0x7b6b696e727e6c7b);
siphash24_compress(in, sizeof(in), &state);
siphash24_compress(in, len, &state);
assert_se(state.v0 == 0x4a017198de0a59e0);
assert_se(state.v1 == 0x0d52f6f62a4f59a4);
assert_se(state.v2 == 0x634cb3577b01fd3d);
@@ -57,14 +52,34 @@ int main(int argc, char *argv[]) {
/* verify that decomposing the input in three chunks gives the
same result */
for (i = 0; i < sizeof(in); i++) {
for (j = i; j < sizeof(in); j++) {
for (i = 0; i < len; i++) {
for (j = i; j < len; j++) {
siphash24_init(&state, key);
siphash24_compress(in, i, &state);
siphash24_compress(&in[i], j - i, &state);
siphash24_compress(&in[j], sizeof(in) - j, &state);
siphash24_compress(&in[j], len - j, &state);
siphash24_finalize(&out, &state);
assert_se(out == htole64(0xa129ca6149be45e5));
}
}
return 0;
}
/* see https://131002.net/siphash/siphash.pdf, Appendix A */
int main(int argc, char *argv[]) {
const uint8_t in[15] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e };
const uint8_t key[16] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f};
uint8_t in_buf[20];
/* Test with same input but different alignments. */
memcpy(in_buf, in, sizeof(in));
do_test(in_buf, sizeof(in), key);
memcpy(in_buf + 1, in, sizeof(in));
do_test(in_buf + 1, sizeof(in), key);
memcpy(in_buf + 2, in, sizeof(in));
do_test(in_buf + 2, sizeof(in), key);
memcpy(in_buf + 4, in, sizeof(in));
do_test(in_buf + 4, sizeof(in), key);
}